var nam="";
var nav=navigator.appName.indexOf("Netscape");
var vers=parseInt(navigator.appVersion);
if ( (nav != -1 && vers >= 3) || (vers == 4) ) {
nhome = new Image(); nhome.src = "gfx/nhome.gif"
ohome = new Image(); ohome.src = "gfx/ohome.gif"
nintro = new Image(); nintro.src = "gfx/nintro.gif"
ointro = new Image(); ointro.src = "gfx/ointro.gif"
ncontact = new Image(); ncontact.src = "gfx/ncontact.gif"
ocontact = new Image(); ocontact.src = "gfx/ocontact.gif"
nservice = new Image(); nservice.src = "gfx/nservice.gif"
oservice = new Image(); oservice.src = "gfx/oservice.gif"
}
function cha(p) {
if ( (nav != -1 && vers >= 3) || (vers == 4) ) {
var pSrc=eval(p+ ".src");
document[nam].src = pSrc;
}
}